| 27/12/23 | 10:31:59 | 27 Dec 2023 | | Pioche Sepiolite Project | RNS |
| 04/12/23 | 13:55:57 | 4 Dec 2023 | | Garfield Royalty Interest | RNS |
| 01/12/23 | 07:00:11 | 1 Dec 2023 | | Investor Presentation | RNS |
| 22/11/23 | 09:51:45 | 22 Nov 2023 | | Result of Meeting | RNS |
| 07/11/23 | 07:00:07 | 7 Nov 2023 | | Proposed Sub-Division of Share Capital | RNS |
| 31/10/23 | 07:00:09 | 31 Oct 2023 | | Reese Ridge Zinc-Lead-Silver (-Gallium) Project | RNS |
| 27/09/23 | 07:00:08 | 27 Sept 2023 | | Pioche Project Update | RNS |
| 15/09/23 | 07:00:04 | 15 Sept 2023 | | Market Study and Pozzolan Project Update | RNS |
| 31/08/23 | 18:09:57 | 31 Aug 2023 | | Total Voting Rights | RNS |
| 11/08/23 | 12:51:01 | 11 Aug 2023 | | Issue of Shares following Conversion & TVR | RNS |
| 11/08/23 | 12:45:52 | 11 Aug 2023 | | ISSUE OF WARRANTS | RNS |
| 03/08/23 | 16:20:46 | 3 Aug 2023 | | Holding(s) in Company | RNS |
| 25/07/23 | 07:00:05 | 25 Jul 2023 | | Pioche Resource Drilling Programme in Progress | RNS |
| 04/07/23 | 12:38:17 | 4 Jul 2023 | | Issue of Equity & TVR | RNS |
| 29/06/23 | 07:00:02 | 29 Jun 2023 | | Reese Ridge Project Update | RNS |
| 12/06/23 | 07:00:04 | 12 Jun 2023 | | Pioche Project Update | RNS |
| 08/06/23 | 12:16:03 | 8 Jun 2023 | | DIRECTOR DEALING, ISSUE OF EQUITY & TVR | RNS |
| 05/06/23 | 07:00:05 | 5 Jun 2023 | | Additional £200,000 Investment | RNS |
| 31/05/23 | 11:46:17 | 31 May 2023 | | Half-year Report | RNS |
| 23/05/23 | 07:00:06 | 23 May 2023 | | Natural Pozzolan Association Symposium | RNS |
| 04/05/23 | 15:34:39 | 4 May 2023 | | Total Voting Rights | RNS |
| 26/04/23 | 07:00:06 | 26 Apr 2023 | | Pioche Project Update | RNS |
| 14/04/23 | 11:52:16 | 14 Apr 2023 | | Holding(s) in Company | RNS |
| 06/04/23 | 12:38:36 | 6 Apr 2023 | | Issue of Equity & TVR | RNS |
| 24/03/23 | 07:00:02 | 24 Mar 2023 | | ISSUE OF WARRANTS | RNS |
| 15/03/23 | 07:00:05 | 15 Mar 2023 | | NEW MINING CLAIMS: REESE RIDGE PROJECT | RNS |
| 17/02/23 | 11:57:16 | 17 Feb 2023 | | Result of AGM | RNS |
| 17/02/23 | 07:00:02 | 17 Feb 2023 | | AGM Chairman’s Statement | RNS |
| 17/01/23 | 09:19:06 | 17 Jan 2023 | | DIRECTOR DEALING, ISSUE OF EQUITY & TVR | RNS |
| 09/01/23 | 07:00:02 | 9 Jan 2023 | | Pioche claims update | RNS |
| 22/12/22 | 07:00:03 | 22 Dec 2022 | | Annual Report and Notice of AGM | RNS |
| 21/12/22 | 07:00:04 | 21 Dec 2022 | | Tolsa maintain option to acquire Sepiolite Project | RNS |
| 13/12/22 | 09:23:05 | 13 Dec 2022 | | Audited Results for the year to 30 September 2022 | RNS |
| 07/12/22 | 13:54:12 | 7 Dec 2022 | | Issue of Convertible Security | RNS |
| 30/11/22 | 07:00:02 | 30 Nov 2022 | | £480,000 Investment, Issue of Equity & TVR | RNS |
| 22/11/22 | 11:55:58 | 22 Nov 2022 | | Holding(s) in Company | RNS |
| 25/10/22 | 07:00:04 | 25 Oct 2022 | | Update - Pioche Sepiolite Project | RNS |
| 12/10/22 | 07:00:02 | 12 Oct 2022 | | Bulk Sampling - Hazen Pozzolan Project, Nevada | RNS |
| 02/09/22 | 07:00:06 | 2 Sept 2022 | | Update - Pioche Sepiolite Project | RNS |
| 31/08/22 | 16:30:04 | 31 Aug 2022 | | Total Voting Rights | RNS |
| 09/08/22 | 14:36:29 | 9 Aug 2022 | | DIRECTOR DEALING, ISSUE OF EQUITY, WARRANTS & TVR | RNS |
| 12/07/22 | 12:25:09 | 12 Jul 2022 | | Placing and TVR | RNS |
| 28/06/22 | 07:00:06 | 28 Jun 2022 | | Sale Option Agreement – Pioche Sepiolite Project | RNS |
| 27/06/22 | 14:00:01 | 27 Jun 2022 | | CS PROJECT – CALTRANS APPROVAL TO AUTHORIZED LIST | RNS |
| 24/05/22 | 14:00:01 | 24 May 2022 | | HALF-YEARLY REPORT 2022 | RNS |
| 19/05/22 | 07:00:08 | 19 May 2022 | | UPDATE ON MYRTLE GOLD-SILVER PROJECT | RNS |
| 11/05/22 | 07:00:02 | 11 May 2022 | | CS PROJECT UPDATE – CALTRANS AUTHORIZED LIST | RNS |
| 09/05/22 | 07:52:06 | 9 May 2022 | | KEY ROLE FOR POZZOLAN IN CEMENT DECARBONISATION | RNS |
| 04/05/22 | 07:00:02 | 4 May 2022 | | PROJECT UPDATE – CS NATURAL POZZOLAN | RNS |
| 30/03/22 | 10:57:35 | 30 Mar 2022 | | Director/PDMR Shareholding | RNS |
